Bike won't start, starter soliniod clicks but starter won't roll over, it will hum and not turn over.

Check to see if there is voltage at the starter motor. If there is, the starter is bad.

sounds like a bad earth if you have jump leads go direct of earth to engine to see if this cures it if so you no where problem is clean replace earth

you may have blown the starter solenoid or even worst the starter motor
i cannot diagnose without seeing the bike properly
i strongly suggest you put in a workshop and get it diagnosed properly

Fixed then.

Check the tightness of the battery cables and the starter relay.

Hi Vernon, There could be a number of different reasons why your vehicle is failing to start. The battery voltage could be dropping during start and become unable to engage the starter motor to turn the engine. You can check this by trying the key with the head lights switched on. If the lights become very dim, you'll need to check the battery, meaning clean the terminals and then try to start with a jump from another battery. If you achieve start up and it fails again the following morning, you will probably need to replace the battery. There could be a problem with the starter relay or a loose contact for the starter motor, most lik3ely the one connecting to the soliniod. It would be good to know some additional information, such as does a clicking sound come from the starter when engaged? Is there a perceptible drop in voltage output when the starter is engaged? does the enine turn at all? Try what I've suggested and if that does not solve the problem answer the questions and let me know anything else which you may think is relevant. Regards John

This would mean that your battery is dead and needs to be charged! hope this helps!

You didn't say what year or model bike you're working on. The clicking you're hearing could be a circuit breaker tripping. If it's a soft click like a turn signal flasher clicking, this is probably a circuit breaker or a relay. If it's a loud click, it may be the solenoid on your starter. Does anything else on the bike work? If not, it's probably the main circuit breaker. How about any security system that may be on the bike?

Good Luck
Steve

I'm not too familiar with the later model bikes but if I were getting a clicking noise under the seat and the bike was not starting, I'd investigate the source of the noise. It's possible that it is a starter relay that engages the solenoid that is an integral part of the starter. Look at the starter from the right hand side of your bike. You'll see a single small wire that connects to the end of the starter just above the end plate of the solenoid. Disconnect this wire and connect a test light or volt meter to the wire. Turn on your ignition switch and press the start button. You should hear the click under the seat and see voltage at the end of that wire. If not, replace the relay, a plastic cube about an inch in dimension.

Good Luck
Steve

tap on starter with hammer if starts replace starter